抄録
As an electric device is miniaturized in recent year, the object of temperature measurement also becomes very small. Although it is already known that the temperature measurement method by liquid crystal is effective in measurement of a thermal field, a small thermal field cannot be measured by the conventional measurement method. Therefore, in this study temperature measurement and visualization are enabled in a small area of natural convective field by expanding thermal and flow field and by taking these pictures. Moreover, even when a heating element is reflected in a picture, we propose a new temperature measurement method by liquid crystal. As a result, in a small area of natural convective field we enabled measurement of a small thermal boundary layer.
